Cleland, Charles Carr. <br/><br/>
Mental retardation :  a developmental approach / 
Charles Carr Cleland. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1978. 
 - xx, 375 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0135765048  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mental retardation.<br/>Mentally handicapped--Care.